PLANT FOR CENTRIFUGAL BIMETALLIZATION OF BUSHINGS Russian patent published in 1998 - IPC

FIELD: foundry, in particular, technology of centrifugal facing (with use of high-frequency current for heating) of internal surface of metal bushings (base) with other metals and alloys with melting points lower than that of steel. SUBSTANCE: plant with exterior indirect heating has heatproof noncooled heater (induction heater) which is made in the form of cylinder to fully envelope the surface of workpiece. The cylinder is split by zigzag saw cuts to pass outer diameter of flanges and installed with its concave part downward. Guides of transportation slides are located vertically opposite to heater and closed from atop together with bimetallized bushing by means of casting with heatproof layers of kaolin wool, ceramic material, changeable heatproof layer (graphite type). Transportation slides have bed for laying bushings with flanges for loading and unloading from plant, and lower casing with heatproof layers similar to layers of upper casting. Device makes it possible to face internal surface of cylindrical bushings from high-melting alloys of steel type with dimensions of d80 x D100 x L1140 with low-melting alloys. EFFECT: provision of facing the internal surface of cylindrical bushings from high-melting alloys of steel type with low-melting alloys. 5 cl, 6 dwg